package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

//用户登录
@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;
    //发送验证码
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user){
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)){
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);
            //将生成的验证码缓存到Redis中，并且设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.success("手机验证码发送成功");
        }
        return R.error("短信发送失败");
    }
    //登录
    @PostMapping("/login")
    public R<User> lonig(@RequestBody Map map, HttpSession session){
        //获取手机
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        Object codeInSession = redisTemplate.opsForValue().get(phone);
        if (codeInSession!=null&&codeInSession.equals(code)){
            //比对成功,可以登录
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if (user==null){
                //新用户
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //用户登录成功，删除Redis中的验证码缓存
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");
    }
    /**
     * 退出登录
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }
}
